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On 2017-06-28 22:55, lista@xxxxxxxxxxxxxxxxx wrote:
Hi People,
I am testing the new enviroment, with ceph + rbd with ubuntu 16.04, and i have one question.
I have my cluster ceph and mount the using the comands to ceph in my linux enviroment :
rbd create veeamrepo --size 20480
rbd --image veeamrepo info
modprobe rbd
rbd map veeamrepo
rbd feature disable veeamrepo exclusive-lock object-map fast-diff deep-flatten
mkdir /mnt/veeamrepo
mount /dev/rbd0 /mnt/veeamrepo
The comands work fine, but i have one problem, in the moment, i can mount the /mnt/veeamrepo in the same time in 2 machines, and this is a bad option for me in the moment, because this could generate one filesystem corrupt.
I need only one machine to be allowed to mount and write at a time.
Example if machine1 mount the /mnt/veeamrepo and machine2 try mount, one error would be displayed, show message the machine can not mount, because the system already mounted in machine1.
Someone, could help-me with this or give some tips, for solution my problem. ?
Thanks a lot
You can use Pacemaker to map the rbd and mount the filesystem on 1 server and in case of failure switch to another server.
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